Messier 20, The Trifid Nebula (H-alpha)

OTA: Celestron C8N, 8" newtonian reflector

Corrector: Baader MPCC

Mount: CGEM DX

Camera: Canon 350d mono, with 3.4V to TEC cooler

Exposure: 32x4min ISO 800

Astronomik 12nm H-alpha filter

Guided with SSAG and PHD

Captured with BackyardEOS

Mono conversion with dcraw -D -4 -T -b 16

Registered and stacked with DeepSkyStacker

Photographed from Round Rock TX (Orange zone)

A change of pace, I plan to do a mosaic one of these days........

Date:5/9/2009

Location:Brisbane Australia

Light and moon poluted sky

Imaging Camera: Canon 1000D

Imaging Scope: Canon 70-200 F4 L

Focal Length: 70mm F5.6

Guide Camera: SSAG

Guide Scope: Orion 80mm F5 Refractor

Guided with PHD Guiding

Mount: Celestron EQ5 GT

Exposure: 34 min 17x2min full colour

Darks: 6x2min

ISO: 800

Processing: DeepSkyStacker, CS3, Noel Carboni's Astronomy Tools

Galaxy Messier 63

Distance: 29 million light years

Shot in March 2019. Intended target was M101. Had to switch to M63 because M101 was low on horizon and engulfed in clouds and sky glow. This target was higher in the sky and gradually the subs cleared up. First meridian flip. Guiding went well.

Equipment/Software:

Explore Scientific ED 102 APO

Celestron Advanced VX Mount

Orion Starshoot Autoguider on Orion 50 mm guidescope

Nikon D3300 (unmodified)

80 images at 120 seconds at iso 800

DeepskyStacker - Startools

Pleiades M45

Z61 + D600 + Ioptron Skyguider

seeing IV (poor)

98x30 sec (49')

ISO 1600

360mm

DeepSkyStacker

GIMP

no darks

no flats

Nebulosa del capullo IC 5146. Skywatcher 120ED, 840 mm, Canon EOS 6D sin modificar. ISO 1600, 12x300 s.DeepSkystacker, PixInsight. PHD.

I had another Comet Catalina search this morning. This comet is only just visible on this DeepSkyStacker image made from 39 stacked 1 sec, exposure maximum ISO; f4.5 using a Canon EOS 60D with no tracking. I have also included magnitude values of some of the Virgo objects that are in the frame (values courtesy of Stellarium). I was hoping this comet would show a bit brighter based on the expected magnitude.

Canon 7D

EF-S 15-85mm @ 15mm

10sec - F3.6 - IS0 1600

Stacked with DeepSkyStacker

22 RAW light frames

10 BIAS frames

Post edited in Photoshop

Monkey Head Nebula or NGC2174. Skywatcher 200p scope, NEQ6 mount, guided.

Unmodified Canon 100d DSLR. 43 x 5 minute images at 800 ISO, 5 x 5 minute Darks, 5 x Biases, 10 Flats stacked by DeepSkyStacker.

獵戶座 M42 及其他

Orion M42 and others

20170211 20:16 to 20:46

51 shoots

Eath ISO 1 dark frame

Camera OLYMPUS DIGITAL CAMERA E-PL5

Lens Miranda 35-70mm 1:3.5-4.5 MC MACRO

Tripod WF WT 3730

Software

DeepSkySacker 3.3.2

Adobe Photoshop Lightroom 6.1 (Windows)

ISO1600 to 25600

70mm ( 140mm )

f3.6

3.2s

My first effort at capturing a deep sky object. Albury cc 14/01/2012 www.astronomy4everyone.org.uk/

300mm Canon zoom lens untracked mount

29 exposures of 3.2s/ISO3200/f5.6 + dark file

Stacked in Deepskystacker

Levels and curves stretched in Photoshop

Montelabro (GR), 08/08/2010 (+08/07 frames)

Transparency: 4/5 (SQM-L 21.20)

Seeing 4/5

Temp: 14°

Takahashi FS60-C F6.2

Canon 350D Baader ACF mod

No LP Filters

12x480sec 800ISO (08/08/10)

8x480sec 800ISO (08/07/10)

11 Dark - 21 Bias - 21 Flat

Guided with PHD Guiding

Magzero Mz5-m+TS OAG9 (08/08/10)

Magzero Mz5-m+Orion Short tube (08/07/10)

Nebulosity, Deepskystacker; Photoshop CS2

Notes: Spike on Upperleft cornet due to OAG prism

I reworked the source files from this image and did a 2x drizzle with a crop in DSS. You can see more about this object at Wikipedia.

Note how the upper right area has some problems with alignment. This was because I wasn't aware of how important doing the drift alignment with all the equipment attached can be. Over the course of the series of exposures, there was field rotation and this appears as blurred stars. Remember, this is a half-size crop of the APS-C sensor. Imagine what it would be like with a Full Frame sensor! Also, the drizzle option seems to have added some strange "rings" around some of the brighter stars.

This is about 1 hour of lights with a ton of darks that have been accumulated over time.

I did a gradient subtraction, histogram stretching, and curves. I didn't see the need to do noise reduction as the image looks pretty good to me at the moment. PP with PixInsight LE.

Taken with the Pentax K10D and the Stellarvue SV4 scope at prime focus.

Here are the DSS settings:

Stacking mode: Custom Rectangle

Alignment method: Automatic

Drizzle x2 enabled

Cosmetic applied to hot pixels (Filter = 1 px, Detection Threshold = 99.0%)

Cosmetic applied to cold pixels (Filter = 1 px, Detection Threshold = 1.0%)

Stacking step 1 ->5 frames (ISO: 1600) - total exposure: 30 mn 4 s

RGB Channels Background Calibration: Yes

Per Channel Background Calibration: No

Method: Median

-> Offset: 24 frames (ISO: 1600) exposure: 1/4000 s

Method: Median Kappa-Sigma (Kappa = 2.00, Iterations = 5)

-> Dark: 16 frames (ISO : 1600) exposure: 6 mn 2 s

Method: Median Kappa-Sigma (Kappa = 2.00, Iterations = 5)

-> Dark Flat: 72 frames (ISO : 1600) exposure: 1/4000 s

Method:

Median Kappa-Sigma (Kappa = 2.00, Iterations = 5)

-> Flat: 24 frames (ISO: 1600) exposure: 1/4000 s

Method: Median Kappa-Sigma (Kappa = 2.00, Iterations = 5)

Stacking step 2 ->0 frames (ISO: 1600) - total exposure: -

RGB Channels Background Calibration: Yes

Per Channel Background Calibration: No

-> Offset: 24 frames (ISO: 1600) exposure: 1/4000 s

Method: Median Kappa-Sigma (Kappa = 2.00, Iterations = 5)

-> Dark: 30 frames (ISO : 1600) exposure: 30 s

Method: Median Kappa-Sigma (Kappa = 2.00, Iterations = 5)

-> Dark Flat: 72 frames (ISO : 1600) exposure: 1/4000 s

Method:

Median Kappa-Sigma (Kappa = 2.00, Iterations = 5)

-> Flat: 24 frames (ISO: 1600) exposure: 1/4000 s

Method: Median Kappa-Sigma (Kappa = 2.00, Iterations = 5)

Essa é a região do Cruzeiro do Sul e nebulosa Eta Carinae. É possível ver na imagem além desses, a nebulosa do saco de carvão, próxima ao cruzeiro do sul (tem esse nome devido sua densidade de poeira não permitir a passagem de luz das estrelas que estão atrás), nebulosa da galinha correndo (bem ao centro) e outras, além de vários aglomerados estelares. Tratei esta foto pelo menos 3 vezes antes de chegar em um resultado que gostasse. É uma região difícil por ser muito estrelada, sendo difícil destacar detalhes. Espero que gostem do resultado. Foto tirada no @bregildo_camping , bortle 3.

This is the Crux and Eta Carinae nebula region. In the picture, we can also see the Coalsack Nebula (it has this name because of its gas and dust density, that keeps us from seeing the stars behind it), running chiken nebula (right in the center) and others, and also many star clusters. I processed this image at least three times before get in something that I like. It's a chalenging region because it has many bright stars, so it's difficult to highlight the details. I hope you liked. Picture taken in @bregildo_camping , bortle 3.

Canon T3i astromodified, yongnuo 50mm lens f/8 (I didn't notice ‍♂️), ISO 800. Guiding with Asiair and ASI290mc with a 50mm finderscope, in a Eq5 Sky-watcher mount and AstroEq mod. 37 Ligth Frames of 240s, 12 darks and 50 bias. 2h28m stacked in total. Processing in Pixinsight.

@sertaoastronomico

#astrophotography #astrofotografia #nightsky #stars #astronomy #astromomia #space #etacarinae #coalsacknebula #crux #CanonT3i #canon600d #dslrmod #Eq5 #skywatcherEq5 #AstroEq #DeepSkyStacker #deepsky #pixinsight #asi290mc #ZwoAsi #zwoasi290mc #longexposure #yn50mm #yongnuo50mm #asiair #guiding #astfotbr

26x 30 second exposures (I shot 42 exposures but the rest were too poor to use due to vibrations in the telescope mount), shot between 10:26pm and 11:36pm, stacked so that the comet, which moves noticeably by the minute is held still in the final image.

- Using the Kappa-Sigma method which removed the stars except for some faint star trail remnants.

7.5inch Maksutov Newtonian telescope F5.3, 1000mm. ISO6400 .. so there's lots of noise in the exposures. I currently have to use a 1.6x barlow lens in the telescope in order to use the camera, until I get the right adapter for this scope. With the barlow, and the camera's crop factor, I was really shooting at F13.5 / 2560mm, so the view is more narrow and dark that it should be. 13 minutes total exposure time.

This image really only shows the core of the comet, the glowing ball of gas and dust around the comet extends out past all the edges of this image.

Comet 103P Hartley is a periodic comet that returns every 6.5 years. It might become visible by eye in October. On this night it had a magnitude of 7.6 and was in the constellation of Casseopia

15/01/2012, Diepenbeek, Belgium

ISO 800 32x120sec lights, 16 darks, 12 flats

Equipment used:

-Skywatcher 200mm F4 Carbon

-HEQ5 Pro mount

-Canon 500D

-Synguider + guidingscope

-Televue Paracorr 2

-TS65-M48a adapter connecting Paracorr 2

-Neodymium filter

-DeepSkyStacker

8 usable lights (60s), 10 darks, 20 flats, 20 bias. Canon EOS 450D DSLR prime focus, ISO1600. Baader Neodymium filter and coma corrector. Sky-Watcher 150P Explorer on EQ3-2 mount. DeepSkyStacker > PixInsight > PhotoShop. The nebulae are false coloured here. Don't look too closely at the stars bottom left—not sure what happened there!!!

Almost 4 hours of inegration, It barely fits on the frame because I didn't check properly the correct rotation at the time of shooting. Very happy with the result anyway, 100% I will shoot agiain next year.

Nikon D500

Skywatcher 72 ED (x0,85 reducer)

Skywatcher HEQ5

ASI Mini guide camera + scope

ASIAIR Plus

Lights: 47x300''

10 Darks

30 Bias

No Flats

Stacked with DeepSkyStacker and processed (poorly) with Photoshop

View on Black

It turns out that I hit the middle of Scheat!

View in World Wide Telescope

Here's what can be done in the suburbs of Houston next to Ellington AFB on a overcast night with a Canon 50d and a Canon 70-200 IS f2.8 @ 15 exposures and a tripod.

I was going to try to capture Jupiter, but it was overcast in Jupiter's direction... So I pointed at the only object that I could see in the East Sky with the naked eye. I took 15 x 2 second exposures at ISO 12800 f2.8 and processed them in DeepSkyStacker and Lightroom2.

WOW! The Canon 50D rocks even in the hands of a first time astrophotographer! I never new a dSLR could see soo many stars on a hazy night in the city!

Bonus! I appear to have got lucky and picked up a satellite!

After looking closer, make that 8-10 satellites! Lots of space junk up there these days!

Bumped up the star detection threshold to 50%, and it looks more believable.

Stacked 10 Light frames of f/1.8, 5 sec., ISO-400, 0 step, 28 mm in DeepSkyStacker 3.3.2, converted to 16 bit TIFF in Photoshop CS6, edited in Lr5.

20min total (2x600s@800iso), Chiswick 22/09/14

Altair 115ED/APO, AZ-EQ6, Canon 1100D (modified) CLS filter

BackyardEOS, Deepskystacker, Photoshop CS2

Taken by Doug Spalding on April 10, 2011 near Butler, Missouri using an SBIG8300C camera mounted on a CGE1100 Telescope using Hyperstar (F/2). This is the sum of 5 of 6 ten minute images, stacked using DeepSkyStacker. The image was then processed with Maxim DL and Photoshop CS2.

With its companion galaxy M110 near the top of the frame. 590 frames at a total time of 9 minutes and 20 seconds.

Poor quality image due to the short exposures, the galaxy itself is at least 50 percent larger than this, but at least the spiral dust lanes are just about visible.

Nikon D3x

400mm f8.0 ISO800

Composit HDR of:

20 x 4 sec

20 x 8 sec

20 x 15 sec

20 x 30 sec

20 x 60 sec

22 x 125 sec

Stacked in DeepSkyStacker 3.3.2

Postprocessing in Photoshop

48 x 600 seconds, ISO 800

Canon 450D (full spectrum mod), Orion 8" f/3.9 Newt

Calibration and post-processing in DeepSkyStacker and Pixinsight

Milky Way Of Hong Kong @ 2016-10-27

Shooting Date/Time : 27/10/2016 19:10

Camera : Sony A7RII

Telescope/Lens : Canon EF24mm f/1.4L II USM @ f/2.2

Filter : None

ISO : 800

Tracking Mount : Nano-Tracker

Autoguide : None

Total Exposure Time : 25min 50sec (25Sec x 62 frames)

w Dark Frames, Bias Frames

Process w : DeepSkyStacker & Photoshop CC

#AllMountainPhotographyOfHongKong

#CanonEF24mm

#DeepSkyStacker

#MilkyWay

#NanoTracker

#Sony #SonyA7RII #SonyFullFramer #SonyPhotos

#ThisIsHongKong

60 light - 800 iso - 180 sec.

8 dark - 800 iso - 180 sec.

31 offset - 800 iso - 1/8000 sec.

31 flat frame - 800 iso - 1/80 sec.

Reflex no modded on eq5 synscan without guide and telescope refractor TSED70Q 474mm 70mm F6.7.

Processed with DeepSkyStacker 3.3.2, Photoshop CS6

Taken with GSO 6" RC, CCDT67, Nikon D5100 in imaging train. PHD2 guided with Logitech Quickcam 4000/9x50 finderscope. DeepSkyStacker and StarTools used to stack/process.

19x 120s subs, 1600ISO

Darks, flats, and flat darks were used.

Shot using true dark current mod as developed by Nikonhacker.

I plan to add luminance subs using a DGM NPB filter, and re-combine in StarTools to see what can be gained.

8 x 4-minute exposures at ISO 1600, f/4. Pentacon 300mm lens & unmodified EOS 40D, piggybacked on a Celestron C8 telescope for manual guiding. Frames registered and stacked using DeepSkyStacker.

Need a lot more sub-exposures, but clear nights are hard to come by! As it was, this night was much interrupted by cloud and rain showers, so I managed only just over 30 mins worth of frames.

One of the 5 original unprocessed shots that went into the Sombrero Galaxy photo to give you an idea of my starting point when creating such a picture.

This is the in-camera JPEG. I worked on the RAW file to bring out more detail, and used DeepSkyStacker to 'sum' the best pixels - great software and the price is right!

Celestron CPC800 unguided and in alt-az mode. A mix of 5 and 15 sec exposures for a total of 2m45s using a stock Nikon D300s @ ISO 3200, focus eyeballed using the camera LCD screen. Registered and stacked with DeepSkyStacker.

22/07/2012 Diepenbeek Belgium

Light: 6x120 sec, Dark: 6x120 sec, Flat: 11x30 sec.

Total time = 12 min

Equipment used:

-Skywatcher 200mm F4 Carbon

-HEQ5 Pro mount

-Canon 500D

-Televue Paracorr 2

-TS65-M48a adapter connecting Paracorr 2

-Baader UHC-s filter

-DeepSkyStacker

-Synguider

Canon EOS1000D, ISO1600

EF-S18-55 @ 18mm f/5,6

16x30sec stacked with Deepskystacker

constellations:

left: Taurus (Stier)

right: Cetus (Walfisch)

Shot through Celestron C8, Antares f/6.3 reducer, with Nikon D5100.

Stacked in DeepSkyStacker, processed in StarTools.

Clean winter sky at Newlyn.

14.75min total (59x15s@3200iso), Chiswick 31/08/14

Altair 115ED/APO, AZ-EQ6, Canon 1100D (modified) CLS filter

BackyardEOS, Deepskystacker, Photoshop CS2

Imaging telescopes or lenses: Sky-Watcher Equinox 80ED

Imaging cameras: QHY8L

Mounts: Skywatcher AZ EQ6 GT

Guiding telescopes or lenses: Celestron 102mm f/6.6 Achromat

Guiding cameras: Magzero MZ-5m

Software: DeepSkyStacker, photoshop, Absoft Neat Image

Accessories: TecnoSky Flattener 1x

Resolution: 3042x2030

Dates: July 24, 2014

Frames: 20x180" -15C bin 1x1

Integration: 1.0 hours

Darks: ~15

Flats: ~21

Avg. Moon age: 26.86 days

Avg. Moon phase: 7.86%

Temperature: 25.00

RA center: 271.058 degrees

DEC center: -23.632 degrees

Orientation: 89.514 degrees

Field radius: 1.639 degrees

Locations: Drassa, Corinth, Greece

Image made from 3 shots taken around 2.30 am today using a Canon EOS 60D mounted on a Skywatcher 200 reflector. Images stacked/processed using DeepSkyStacker/Photoshop

Camera: Nikon D50

Exposure: 10 x 180s ISO 1600 RGB

Filter: Orion Skyglow Imaging Filter

Lens Aperature/Focal Length: 50×200mm

Telescope: Piggyback mounted on Meade LX200-GPS 10" ACF

Guided: Yes

Stacked: DeepSkyStacker

Adjustments: cropped/leveled in Photoshop

Location: Flintstone, GA

Imaging telescopes or lenses: Sky-Watcher Equinox 80ED

Imaging cameras: QHY8L

Mounts: Skywatcher AZ EQ6 GT

Guiding telescopes or lenses: Celestron 102mm f/6.6 Achromat

Guiding cameras: Magzero MZ-5m

Software: DeepSkyStacker, photoshop, Absoft Neat Image

Accessories: TecnoSky Flattener 1x

Resolution: 3028x2013

Dates: July 25, 2014

Locations: Drassa

Frames: 25x180" -15C bin 1x1

Integration: 1.2 hours

Darks: ~21

Flats: ~21

Bias: ~21

Avg. Moon age: 27.77 days

Avg. Moon phase: 3.46%

Bortle Dark-Sky Scale: 3.00

RA center: 275.104 degrees

DEC center: -16.292 degrees

Pixel scale: 3.228 arcsec/pixel

Orientation: -90.490 degrees

Field radius: 1.630 degrees

The comet, still in Andromeda, is now a little brighter than when I imaged it on 29 Feb, and despite it being low in a murky sky, quite a long tail is visible to the camera. As mentioned with the previous photo, its sky location means I can't view or image it with my 'scope.

20 x 30-sec exposures at f/4 and ISO 3200 with an EOS 600D and Zeiss Jena 135mm f/3.5 lens, on a Vixen Polarie star tracker; frames stacked on the comet (hence the very slightly trailed stars) in DeepSkyStacker, with curves adjustment and further noise reduction in post-processing.

M51 Whirlpool Galaxy

Sb - spiral galaxy

LX90 + D600

115x60 sec (1h55') unguided

ISO 1600

DeepSkyStacker

GIMP

About 1 hour total exposure. Taken with Canon 5d3, 300mm f/4, and AstroTrac. Stacked in DeepSkyStacker.

Greetings from Norfolk! Hope you don't mind me posting an occasional image here. This is the first time I have got my 4" celestron up and running. This is a stack of 5x30 sec frames combined with deepskystacker. All taken at ISO3200 using an Nikon D90 at prime focus. No bias or flat frames taken, so hot pixels show up. Adjusted in photoshop. I realise just what a difference a dark sky makes!

My first attempt at processing/stacking with PixInsight (45 day trial). Cool program, much harder to learn than DeepSkyStacker. But it did a much better job at star alignment.

Manually off-axis guided for 6 x 10-minute exposures at ISO 1600, f6.3. Images registered and stacked using DeepSkyStacker.

Celestron C8 telescope & unmodified Canon EOS 40D

Being the northernmost Messier objects, Bode's Galaxy (M81) and Cigar Galaxy (M82) can be observed yearlong in Boston and they allow longer exposure time without an equatorial mount. [394 frames x 6" exposure at 214 mm, F/5.0, ISO 1600]

CANON EOS 7D

Lens : Tamron 70-200 f/2.8

Focal length 175mm , ISO1600 , f/2.8 , 1.6sec

70% crop

light frame x 427

dark frame x 26

offset x 2

Sofrware : DeepSkyStacker

I did get some deep sky imaging in before my holiday!

17 x 4-minutes at ISO 1600 & 6 x 5-minutes at ISO 1000, f/4.

All but 9 of the sub-exposures were obtained in previous imaging sessions.

Registered and stacked in DeepSkyStacker software.

Unmodified Canon EOS 40D & Pentacon 300mm f4, piggybacked on a Celestron C8 for manual guiding.

Captured from my lawn at home using a William Optics 66mm APO telescope on a Celestron CI700 mount. The camera is a clear glass modified Canon Rebel XT with an Astronomic CLS clip in filter. This is an assembly of 28 four minute exposures @ 1600 iso and 28 corresponding dark frames. No guiding or PEC correction required. Frames stacked in Deepskystacker and adjusted in CS2.